Boron removal from produce water through adsorption

Boron (B) is essential for the development and functioning of organisms, involving their growth, health, and development of plants, animals, and humans. Nevertheless, the increasing use of boron in various applications has led to environmental problems and health issues. Several separation technologies have been employed to remove boron, and adsorption is one such technology that utilizes adsorbents to address solutions containing extremely low levels of boron. This finding investigates the residual boron from a synthesized solution through adsorption, using CRB05 as the adsorbent. The impact of adsorbent dosage, contact time, boron concentration, and pH on residual boron was examined. The findings indicate that the pH plays a substantial role impact on the residual boron efficiency from all adsorbents. The highest residual of boron was achieved at pH 4.5, adsorbent dosage 1125 mg/L, time 255 minutes, and concentration 1150 mg/L with 98% removal. Adsorption of boron using CRB05 proved to be an effective method for recovering boron from the synthesis solution. The findings of this study enhance our comprehension of the adsorption behavior of CRB05 and provide insights into the optimal operating conditions for efficient boron removal

The Effect of Environmental Taxes on Environmental Accounting Disclosure of Nigerian Oil and Gas Companies

There is currently a lack of information about the contemporary and potential effects of environmental taxes on environmental accounting disclosure. This study, therefore, explores environmental taxes' impact on Nigerian oil and gas companies' disclosure of environmental accounting information. The study used auxiliary data by generating information on the outcome variable and the explanatory variable from the “Organization for Economic Cooperation and Development” (OECD) and annual reports and accounts of the oil and gas corporations in Nigeria. The analysis included thirteen (13) companies as of December 31, 2021. Fixed-effects regression using Estimation using Driscoll and Kraay standard errors (DKSE) has been used in this study. The study revealed that an increase in total green taxes or transportation taxes will stimulate the disclosure of environmental accounting information by the oil and gas corporations in Nigeria. It is also documented that oil and gas companies that have high C2 intensity are less likely to disclose environmental accounting information.  The study findings will be useful to the regulators and policymakers in Nigeria. This is because if the government enhances environmental taxes, it may inspire companies to enhance their environmental accounting procedures

Boron removal from produce water through adsorption

Boron (B) is essential for the development and functioning of organisms, involving their growth, health, and development of plants, animals, and humans. Nevertheless, the increasing use of boron in various applications has led to environmental problems and health issues. Several separation technologies have been employed to remove boron, and adsorption is one such technology that utilizes adsorbents to address solutions containing extremely low levels of boron. This finding investigates the residual boron from a synthesized solution through adsorption, using CRB05 as the adsorbent. The impact of adsorbent dosage, contact time, boron concentration, and pH on residual boron was examined. The findings indicate that the pH plays a substantial role impact on the residual boron efficiency from all adsorbents. The highest residual of boron was achieved at pH 4.5, adsorbent dosage 1125 mg/L, time 255 minutes, and concentration 1150 mg/L with 98% removal. Adsorption of boron using CRB05 proved to be an effective method for recovering boron from the synthesis solution. The findings of this study enhance our comprehension of the adsorption behavior of CRB05 and provide insights into the optimal operating conditions for efficient boron removal

A dynamic panel data approach of corporate tax avoidance and debt financing in Nigeria

AbstractThis study examines the influence of corporate tax avoidance on the debt financing of listed conglomerate firms in Nigeria. The study utilized documentary data collected from the annual reports and accounts of the sampled companies from 2010 to 2021. The data were analyzed using the Generalized Method of Moments (GMM). The results of the main analysis indicate that CETR and BTD have a negative and strong association with debt policy, proxied by debt to equity and debt to total assets. These findings imply that tax avoidance is positive and therefore more likely to increase the debt capital of listed companies in Nigeria. Hence, it is recommended that the management of conglomerate firms strive to strike a balance between non-debt tax shields and a tax shield in its effort to reduce its taxable income, as the cost of conventional debt is lower

Lithium adsorption from aqueous solution using aluminum hydroxide: Characterization, optimization by response surface methodology, kinetic modelling, and isotherm studies

The growing need for Lithium (Li) chemicals for industrial application demands finding affordable and environmentally friendly ways of producing them beyond conventional land mining. Adsorption is a promising technique for Li recovery as it selectively extracts Li from aqueous resources at a low cost and with minimal energy requirements. The use of adsorption for Li recovery is important for promoting a circular economy and decreasing natural Li in the environment. Thus, this study aim to assess the efficiency of aluminum hydroxide (Al(OH)3) as an adsorbent for Li recovery from aqueous solution by adjusting the amount of adsorbent, time, Li concentration, and pH. The use of Al(OH)3 provides selective separation of Li ions and can be used as a simple and cost-effective method for purifying Li-containing solutions. The optimal conditions for the adsorption process were determined using the Box-Behnken in response surface methodology (RSM). The findings revealed that the highest removal was anticipated with a 1150 mg/L adsorbent dose, 4.5 pH, 1150 mg/L initial concentration, and 255 minutes contact time. The outcome of the finding supports the use of Al (OH)3 as a suitable choice for recovering Li due to its greater capacity for sorption and higher percentage of Li absorbed. The analysis of the isotherm and kinetic experiment results showed that the Temkin isotherm and the pseudo-first-order model were well-fitting, with R2 values of 0.998 and 0.999, respectively. This study emphasizes the effectiveness of Al(OH)3 in recovering Li and details the optimal adsorption process. As a result, Al(OH)3 has been presumed to be the most suitable choice for Li recovery because it outperforms other available adsorbents with high sorption ability